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Analog Devices Inc./Maxim Integrated MAX312LESE+T
- Part No.:
- MAX312LESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX312LESE+T.pdf
- Description:
- IC SWITCH SPST-NCX4 10OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,403
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Product details
Overview
MAX312LESE+T from Maxim Integrated is a quad, normally closed (NC), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in high-fidelity and industrial systems. It delivers ≤10Ω on-resistance, ≤1.5Ω channel-to-channel RON match, and ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation - enabling rail-to-rail analog signal handling in test equipment and avionics signal paths.
For engineers reviewing the MAX312LESE+T datasheet, MAX312LESE+T pinout, MAX312LESE+T application, or MAX312LESE+T equivalent, this page provides verified electrical specifications, package-validated pin functions, real-world use scenarios, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The MAX312LESE+T implements four independent NC SPST switches using CMOS process technology, with logic inputs compatible with +3V TTL/CMOS levels (VIH = 2.0V, VIL = 0.8V) across its full operating temperature range (–40°C to +85°C). Its architecture supports bidirectional conduction and guarantees low leakage (±2.5nA at +85°C) and flat on-resistance over signal range (≤4Ω variation).
It operates without power-supply sequencing constraints - unlike legacy MAX312 - eliminating latch-up risk during V+, V–, and GND ramp-up sequences. The device maintains >96dB crosstalk at 20kHz and –75dB off-isolation at 1MHz, confirming suitability for low-distortion audio and high-rejection multiplexing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST, normally closed (NC) - all four channels default closed when IN = 0V |
| Max On-Resistance | 10Ω at ±15V supplies - ensures minimal signal attenuation and voltage drop in precision analog paths |
| RON Match | ≤1.5Ω max between channels - critical for matched gain/phase in differential or multi-channel routing |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - supports wide industrial and aerospace input rails |
| Logic Compatibility | +3V logic inputs (VIH = 2.0V, VIL = 0.8V) - interfaces directly with microcontrollers and FPGAs without level shifters |
| Leakage Current | ±2.5nA max at +85°C - preserves accuracy in high-impedance sample-and-hold and sensor front-ends |
| Turn-On/Off Time | 275ns / 235ns max (dual supply) - enables fast switching in automated test and data-acquisition systems |
Pinout & Package
MAX312LESE+T is supplied in a 16-pin narrow SO (Small Outline) package, 150 mil width, with standard JEDEC MO-153 footprint and gull-wing leads. Pin 1 is marked by a beveled corner or dot; thermal pad is not present (unlike QFN variants).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | Logic control inputs | Active-low control: IN = 0V closes switch; IN = ≥2.0V opens switch (NC behavior) |
| COM1–COM4 (Pins 2, 7, 10, 15) | Analog common terminals | Signal path center points - bidirectional current flow supported up to ±100mA continuous |
| NC1–NC4 (Pins 3, 6, 11, 14) | Analog normally closed terminals | Connected to corresponding COM pin when IN = 0V; open when IN = high |
| V+ (Pin 13) | Positive analog supply | Accepts +4.5V to +36V (single) or +4.5V to +20V (dual); must be ≥|V–| for proper biasing |
| V– (Pin 4) | Negative analog supply | Accepts –4.5V to –20V (dual); tie to GND for single-supply operation |
| GND (Pin 5) | Ground reference | Return path for logic and supply currents; separate from analog signal ground in mixed-signal layouts |
| N.C. (Pin 12) | No connection | Not bonded internally - leave unconnected; no routing or grounding required |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V– to V+ without clipping or distortion - essential for ±10V instrumentation ranges |
| +3V logic compatibility | Eliminates need for external level translators when interfacing with modern low-voltage controllers |
| Guaranteed RON flatness | ≤2Ω max variation over full signal range - ensures consistent gain and linearity in audio and measurement paths |
| Low charge injection | ±30pC max - minimizes voltage glitch in sample-and-hold and switched-capacitor circuits |
| Pin compatibility | Drop-in replacement for MAX312/MAX313/MAX314 and DG411/DG412/DG413 - simplifies legacy design upgrades |
Applications
| Test Equipment Signal Routing | Avionics Sensor Multiplexing |
|---|---|
Use Scenario: Automated test systems route multiple sensor outputs to a shared ADC or DMM under software control. IC Role / Device Role / Timing Role: MAX312LESE+T acts as a low-leakage, low-RON analog multiplexer - selecting one of four transducer signals per IC while preserving signal integrity. Use Value: ≤2.5nA leakage at +85°C prevents DC offset drift in high-impedance thermocouple or strain-gauge measurements. |
Use Scenario: Flight control units condition and route redundant pressure, temperature, and position sensor signals before fault detection. IC Role / Device Role / Timing Role: MAX312LESE+T serves as a fail-safe analog switch - NC configuration ensures signal continuity during power loss or controller reset. Use Value: –40°C to +85°C extended temperature rating meets DO-160 environmental requirements for airborne electronics. |
| Audio Signal Switching | Data-Acquisition Front-End |
Use Scenario: Professional audio mixers switch line-level analog signals between processing stages without audible artifacts. IC Role / Device Role / Timing Role: MAX312LESE+T functions as a low-distortion signal path selector - leveraging ≤10Ω RON and <0.01% THD at 1kHz. Use Value: ≤1.5Ω RON matching between channels ensures balanced stereo or multi-channel gain tracking. |
Use Scenario: Industrial PLC modules condition and multiplex analog inputs (4–20mA, ±10V) prior to digitization. IC Role / Device Role / Timing Role: MAX312LESE+T isolates input channels during scanning - preventing cross-talk and ensuring accurate per-channel calibration. Use Value: >96dB crosstalk at 20kHz suppresses inter-channel interference in simultaneous-sampling architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX312LCSE | Same pinout and function, but rated for 0°C to +70°C only - no extended temperature validation | Restricted to commercial-grade environments; unsuitable for automotive or industrial deployments requiring –40°C startup | Select MAX312LCSE only if ambient operating temperature remains strictly within 0°C–70°C and cost sensitivity outweighs reliability margin. |
| ADG411BRZ | Quad SPST, NC, but higher RON (35Ω typ), wider VSS/VDD range (±20V), and no guaranteed RON match spec | Lacks channel matching guarantee - limits use in precision differential or calibrated multi-path systems | Choose ADG411BRZ where absolute on-resistance value is less critical than ultra-wide supply tolerance or availability from alternate suppliers. |
Compared with MAX312LESE+T, MAX312LCSE trades temperature robustness for lower cost, while ADG411BRZ offers broader supply flexibility at the expense of matching and leakage performance - making MAX312LESE+T optimal for high-accuracy, extended-temperature analog routing.
Availability
MAX312LESE+T is available at Aetrix Electronics and suitable for test equipment, avionics signal conditioning, and industrial data-acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX312LESE+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for demanding industrial, communications, and aerospace applications.
The MAX312L/MAX313L/MAX314L family was engineered to replace legacy analog switches with enhanced logic compatibility, reduced leakage, and elimination of power-sequencing constraints - targeting high-reliability signal routing in mission-critical systems.
FAQ
What is the maximum allowable supply voltage for MAX312LESE+T?
The MAX312LESE+T supports dual supplies from ±4.5V to ±20V, or a single supply from +4.5V to +36V. Absolute maximum ratings specify V+ up to +44V and V– down to –44V, but operation beyond ±20V or +36V voids parametric guarantees and risks permanent damage. Always observe the recommended operating ranges in the datasheet for reliable performance of MAX312LESE+T.
Is MAX312LESE+T pin-compatible with the original MAX312?
Yes, MAX312LESE+T is pin-compatible with MAX312, MAX313, and MAX314, as well as industry-standard DG411/DG412/DG413 devices. This allows direct replacement in existing PCB layouts without modification. However, MAX312LESE+T improves upon the original with tighter RON matching, lower leakage, and elimination of VL pin and power-sequencing requirements - enhancing reliability in new and upgraded designs using MAX312LESE+T.
Does MAX312LESE+T support single-supply operation with ground-referenced signals?
Yes, MAX312LESE+T supports true single-supply operation: connect V– to GND, apply V+ between +4.5V and +36V, and route analog signals from 0V to V+. The device maintains rail-to-rail signal handling and retains its specified on-resistance (≤35Ω max at +12V), leakage (±2.5nA), and switching speed - making it suitable for ground-referenced data-acquisition front-ends and industrial I/O modules using MAX312LESE+T.
What is the logic polarity of the control inputs on MAX312LESE+T?
The control inputs (IN1–IN4) on MAX312LESE+T are active-low for the normally closed (NC) configuration: applying 0V (or ≤0.8V) closes the switch (connects COM to NC), while applying ≥2.0V opens it. This matches standard TTL/CMOS logic thresholds and eliminates ambiguity in interface design. All timing and leakage specs in the MAX312LESE+T datasheet assume this defined logic polarity.
Can MAX312LESE+T be used in audio applications requiring low total harmonic distortion?
Yes, MAX312LESE+T is validated for low-distortion audio use: typical THD is <0.01% at 1kHz with 5VRMS signal into 600Ω load, enabled by ≤10Ω RON, ≤1.5Ω channel matching, and low charge injection (±30pC). Its flat RON vs. signal voltage ensures consistent gain across amplitude - critical for professional audio routing. These characteristics are measured and guaranteed for MAX312LESE+T in the official datasheet.
MAX312LESE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- 300mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 225ns, 185ns
- -3db Bandwidth:
- -
- Charge Injection:
- 20pC
- Channel Capacitance (CS(off), CD(off)):
- 15pF, 15pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX312LESE+T FAQ
1.How can I place an order for MAX312LESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX312LESE+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX312LESE+T reliable?
The price and inventory of MAX312LESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX312LESE+T is usually 5 days.
3.What payment methods are accepted for MAX312LESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX312LESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX312LESE+T?
MAX312LESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX312LESE+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX312LESE+T?
For technical support, including MAX312LESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX312LESE+T requirements.
6.How does Aetrix verify that MAX312LESE+T is sourced from the original manufacturer or authorized distributors?
All MAX312LESE+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX312LESE+T meets industry standards.
7.What is the process for return or replacement of MAX312LESE+T?
All MAX312LESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX312LESE+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX312LESE+T part is unused and in its original packaging.
Return procedure for MAX312LESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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